How to replace findpeaks() with another function

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Hi to all,
I use findpeaks function in my code to calculate the four maximum values of a fft function.
I use it in this way:
[maxpeaks, idx] = findpeaks(10*log10(psdx),'MinPeakDistance',195,'NPeaks',4,'MinPeakHeight', -Inf, 'SortStr','descend')
The problem is that I need to run the code in a Matlab version which doesn't have the Signal Processing Toolbox. Is there any solution to write a similar function without the need of the SP Toolbox?
Thank you!

Accepted Answer

sloppydisk
sloppydisk on 20 May 2018
Edited: sloppydisk on 20 May 2018
Any of these options on the file exchange might help you.

More Answers (1)

Star Strider
Star Strider on 20 May 2018
If the MATLAB version is R2017b or later, the islocalmax (link) function is likely the best option.
  2 Comments
marcusbarnet
marcusbarnet on 21 May 2018
do you know if it works also on R2017a?
Star Strider
Star Strider on 21 May 2018
Unfortunately, it won’t. It was introduced in R2017b.

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